LameXP/src/Thread_FileAnalyzer_Task.cpp

787 lines
25 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// LameXP - Audio Encoder Front-End
// Copyright (C) 2004-2020 LoRd_MuldeR <MuldeR2@GMX.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU GENERAL PUBLIC LICENSE as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version; always including the non-optional
// LAMEXP GNU GENERAL PUBLIC LICENSE ADDENDUM. See "License.txt" file!
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// http://www.gnu.org/licenses/gpl-2.0.txt
///////////////////////////////////////////////////////////////////////////////
#include "Thread_FileAnalyzer_Task.h"
//Internal
#include "Global.h"
#include "LockedFile.h"
#include "Model_AudioFile.h"
#include "MimeTypes.h"
//MUtils
#include <MUtils/Global.h>
#include <MUtils/OSSupport.h>
#include <MUtils/Lazy.h>
#include <MUtils/Exception.h>
//Qt
#include <QDir>
#include <QFileInfo>
#include <QProcess>
#include <QDate>
#include <QTime>
#include <QDebug>
#include <QImage>
#include <QReadLocker>
#include <QWriteLocker>
#include <QThread>
#include <QXmlSimpleReader>
#include <QXmlInputSource>
#include <QXmlStreamReader>
#include <QStack>
//CRT
#include <math.h>
#include <time.h>
#include <assert.h>
////////////////////////////////////////////////////////////
// Helper Macros
////////////////////////////////////////////////////////////
#define ADD_PROPTERY_MAPPING_1(TYPE, NAME) do \
{ \
ADD_PROPTERY_MAPPING_2(TYPE, NAME, NAME); \
} \
while(0)
#define ADD_PROPTERY_MAPPING_2(TYPE, MI_NAME, LX_NAME) do \
{ \
builder->insert(qMakePair(AnalyzeTask::trackType_##TYPE, QString::fromLatin1(#MI_NAME)), AnalyzeTask::propertyId_##LX_NAME); \
} \
while(0)
#define SET_OPTIONAL(TYPE, IF_CMD, THEN_CMD) do \
{ \
TYPE _tmp;\
if((IF_CMD)) { THEN_CMD; } \
} \
while(0)
#define DIV_RND(A,B) (((A) + ((B) / 2U)) / (B))
#define STRICMP(A,B) ((A).compare((B), Qt::CaseInsensitive) == 0)
////////////////////////////////////////////////////////////
// Static initialization
////////////////////////////////////////////////////////////
static MUtils::Lazy<const QMap<QPair<AnalyzeTask::MI_trackType_t, QString>, AnalyzeTask::MI_propertyId_t>> s_mediaInfoIdx([]
{
QMap<QPair<AnalyzeTask::MI_trackType_t, QString>, AnalyzeTask::MI_propertyId_t> *const builder = new QMap<QPair<AnalyzeTask::MI_trackType_t, QString>, AnalyzeTask::MI_propertyId_t>();
ADD_PROPTERY_MAPPING_2(gen, format, container);
ADD_PROPTERY_MAPPING_2(gen, format_profile, container_profile);
ADD_PROPTERY_MAPPING_1(gen, duration);
ADD_PROPTERY_MAPPING_1(gen, title);
ADD_PROPTERY_MAPPING_2(gen, track, title);
ADD_PROPTERY_MAPPING_1(gen, artist);
ADD_PROPTERY_MAPPING_2(gen, performer, artist);
ADD_PROPTERY_MAPPING_1(gen, album);
ADD_PROPTERY_MAPPING_1(gen, genre);
ADD_PROPTERY_MAPPING_1(gen, released_date);
ADD_PROPTERY_MAPPING_2(gen, recorded_date, released_date);
ADD_PROPTERY_MAPPING_1(gen, track_position);
ADD_PROPTERY_MAPPING_1(gen, comment);
ADD_PROPTERY_MAPPING_1(aud, format);
ADD_PROPTERY_MAPPING_1(aud, format_version);
ADD_PROPTERY_MAPPING_1(aud, format_profile);
ADD_PROPTERY_MAPPING_2(aud, format_additionalfeatures, format_profile);
ADD_PROPTERY_MAPPING_1(aud, duration);
ADD_PROPTERY_MAPPING_1(aud, channel_s_);
ADD_PROPTERY_MAPPING_1(aud, samplingrate);
ADD_PROPTERY_MAPPING_1(aud, bitdepth);
ADD_PROPTERY_MAPPING_1(aud, bitrate);
ADD_PROPTERY_MAPPING_1(aud, bitrate_mode);
ADD_PROPTERY_MAPPING_1(aud, encoded_library);
ADD_PROPTERY_MAPPING_2(gen, cover_mime, cover_mime);
ADD_PROPTERY_MAPPING_2(gen, cover_data, cover_data);
return builder;
});
static MUtils::Lazy<const QMap<QString, AnalyzeTask::MI_propertyId_t>> s_avisynthIdx([]
{
QMap<QString, AnalyzeTask::MI_propertyId_t> *const builder = new QMap<QString, AnalyzeTask::MI_propertyId_t>();
builder->insert(QLatin1String("totalseconds"), AnalyzeTask::propertyId_duration);
builder->insert(QLatin1String("samplespersec"), AnalyzeTask::propertyId_samplingrate);
builder->insert(QLatin1String("channels"), AnalyzeTask::propertyId_channel_s_);
builder->insert(QLatin1String("bitspersample"), AnalyzeTask::propertyId_bitdepth);
return builder;
});
static MUtils::Lazy<const QMap<QString, QString>> s_mimeTypes([]
{
QMap<QString, QString> *const builder = new QMap<QString, QString>();
for (size_t i = 0U; MIME_TYPES[i].type; ++i)
{
builder->insert(QString::fromLatin1(MIME_TYPES[i].type), QString::fromLatin1(MIME_TYPES[i].ext[0]));
}
return builder;
});
static MUtils::Lazy<const QMap<QString, AnalyzeTask::MI_trackType_t>> s_trackTypes([]
{
QMap<QString, AnalyzeTask::MI_trackType_t> *const builder = new QMap<QString, AnalyzeTask::MI_trackType_t>();
builder->insert("general", AnalyzeTask::trackType_gen);
builder->insert("audio", AnalyzeTask::trackType_aud);
return builder;
});
////////////////////////////////////////////////////////////
// Constructor
////////////////////////////////////////////////////////////
AnalyzeTask::AnalyzeTask(const int taskId, const QString &inputFile, QAtomicInt &abortFlag)
:
m_taskId(taskId),
m_inputFile(inputFile),
m_mediaInfoBin(lamexp_tools_lookup("mediainfo.exe")),
m_mediaInfoVer(lamexp_tools_version("mediainfo.exe")),
m_avs2wavBin(lamexp_tools_lookup("avs2wav.exe")),
m_abortFlag(abortFlag),
m_mediaInfoIdx(*s_mediaInfoIdx),
m_avisynthIdx(*s_avisynthIdx),
m_mimeTypes(*s_mimeTypes),
m_trackTypes(*s_trackTypes)
{
if(m_mediaInfoBin.isEmpty() || m_avs2wavBin.isEmpty())
{
qFatal("Invalid path to MediaInfo binary. Tool not initialized properly.");
}
}
AnalyzeTask::~AnalyzeTask(void)
{
emit taskCompleted(m_taskId);
}
////////////////////////////////////////////////////////////
// Thread Main
////////////////////////////////////////////////////////////
void AnalyzeTask::run()
{
try
{
run_ex();
}
catch(const std::exception &error)
{
MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
}
catch(...)
{
MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
}
}
void AnalyzeTask::run_ex(void)
{
int fileType = fileTypeNormal;
QString currentFile = QDir::fromNativeSeparators(m_inputFile);
qDebug("Analyzing: %s", MUTILS_UTF8(currentFile));
AudioFileModel fileInfo(currentFile);
analyzeFile(currentFile, fileInfo, &fileType);
if(MUTILS_BOOLIFY(m_abortFlag))
{
qWarning("Operation cancelled by user!");
return;
}
switch(fileType)
{
case fileTypeDenied:
qWarning("Cannot access file for reading, skipping!");
break;
case fileTypeCDDA:
qWarning("Dummy CDDA file detected, skipping!");
break;
default:
if(fileInfo.metaInfo().title().isEmpty() || fileInfo.techInfo().containerType().isEmpty() || fileInfo.techInfo().audioType().isEmpty())
{
fileType = fileTypeUnknown;
if(!QFileInfo(currentFile).suffix().compare("cue", Qt::CaseInsensitive))
{
qWarning("Cue Sheet file detected, skipping!");
fileType = fileTypeCueSheet;
}
else if(!QFileInfo(currentFile).suffix().compare("avs", Qt::CaseInsensitive))
{
qDebug("Found a potential Avisynth script, investigating...");
if(analyzeAvisynthFile(currentFile, fileInfo))
{
fileType = fileTypeNormal;
}
else
{
qDebug("Rejected Avisynth file: %s", MUTILS_UTF8(fileInfo.filePath()));
}
}
else
{
qDebug("Rejected file of unknown type: %s", MUTILS_UTF8(fileInfo.filePath()));
}
}
break;
}
//Emit the file now!
emit fileAnalyzed(m_taskId, fileType, fileInfo);
}
////////////////////////////////////////////////////////////
// Privtae Functions
////////////////////////////////////////////////////////////
const AudioFileModel& AnalyzeTask::analyzeFile(const QString &filePath, AudioFileModel &audioFile, int *const type)
{
*type = fileTypeNormal;
QFile readTest(filePath);
if (!readTest.open(QIODevice::ReadOnly))
{
*type = fileTypeDenied;
return audioFile;
}
if (checkFile_CDDA(readTest))
{
*type = fileTypeCDDA;
return audioFile;
}
readTest.close();
return analyzeMediaFile(filePath, audioFile);
}
const AudioFileModel& AnalyzeTask::analyzeMediaFile(const QString &filePath, AudioFileModel &audioFile)
{
//bool skipNext = false;
QPair<quint32, quint32> id_val(UINT_MAX, UINT_MAX);
quint32 coverType = UINT_MAX;
QByteArray coverData;
QStringList params;
params << L1S("--Language=raw") << L1S("--Output=XML") << L1S("--Full") << L1S("--Cover_Data=base64");
params << QDir::toNativeSeparators(filePath);
QProcess process;
MUtils::init_process(process, QFileInfo(m_mediaInfoBin).absolutePath());
process.start(m_mediaInfoBin, params);
QByteArray data;
data.reserve(16384);
if(!process.waitForStarted())
{
qWarning("MediaInfo process failed to create!");
qWarning("Error message: \"%s\"\n", process.errorString().toLatin1().constData());
process.kill();
process.waitForFinished(-1);
return audioFile;
}
while(process.state() != QProcess::NotRunning)
{
if(MUTILS_BOOLIFY(m_abortFlag))
{
process.kill();
qWarning("Process was aborted on user request!");
break;
}
if(!process.waitForReadyRead())
{
if(process.state() == QProcess::Running)
{
qWarning("MediaInfo time out. Killing the process now!");
process.kill();
process.waitForFinished(-1);
break;
}
}
forever
{
const QByteArray dataNext = process.readAll();
if (dataNext.isEmpty()) {
break; /*no more input data*/
}
data += dataNext.trimmed();
}
}
process.waitForFinished();
if (process.state() != QProcess::NotRunning)
{
process.kill();
process.waitForFinished(-1);
}
while (!process.atEnd())
{
const QByteArray dataNext = process.readAll();
if (dataNext.isEmpty()) {
break; /*no more input data*/
}
data += dataNext.trimmed();
}
#if MUTILS_DEBUG
qDebug("-----BEGIN MEDIAINFO-----\n%s\n-----END MEDIAINFO-----", data.constData());
#endif //MUTILS_DEBUG
return parseMediaInfo(data, audioFile);
}
const AudioFileModel& AnalyzeTask::parseMediaInfo(const QByteArray &data, AudioFileModel &audioFile)
{
QXmlStreamReader xmlStream(data);
bool firstMediaFile = true;
if (findNextElement(QLatin1String("MediaInfo"), xmlStream))
{
const QString versionXml = findAttribute(QLatin1String("Version"), xmlStream.attributes());
if (versionXml.isEmpty() || (!checkVersionStr(versionXml, 2U, 0U)))
{
qWarning("Invalid file format version property: \"%s\"", MUTILS_UTF8(versionXml));
return audioFile;
}
if (findNextElement(QLatin1String("CreatingLibrary"), xmlStream))
{
const QString versionLib = findAttribute(QLatin1String("Version"), xmlStream.attributes());
const QString identifier = xmlStream.readElementText(QXmlStreamReader::SkipChildElements).simplified();
if (!STRICMP(identifier, QLatin1String("MediaInfoLib")))
{
qWarning("Invalid library identiofier property: \"%s\"", MUTILS_UTF8(identifier));
return audioFile;
}
if (!versionLib.isEmpty())
{
if (m_mediaInfoVer != UINT_MAX)
{
const quint32 mediaInfoVer = (m_mediaInfoVer > 9999U) ? m_mediaInfoVer / 10U : m_mediaInfoVer;
if (!checkVersionStr(versionLib, mediaInfoVer / 100U, mediaInfoVer % 100U))
{
qWarning("Invalid library version property: \"%s\"", MUTILS_UTF8(versionLib));
return audioFile;
}
}
}
else
{
qWarning("Library version property not found!");
return audioFile;
}
while (findNextElement(QLatin1String("Media"), xmlStream))
{
if (firstMediaFile || audioFile.techInfo().containerType().isEmpty() || audioFile.techInfo().audioType().isEmpty())
{
firstMediaFile = false;
parseFileInfo(xmlStream, audioFile);
}
else
{
qWarning("Skipping non-primary file!");
xmlStream.skipCurrentElement();
}
}
}
}
if (!(audioFile.techInfo().containerType().isEmpty() || audioFile.techInfo().audioType().isEmpty()))
{
if (audioFile.metaInfo().title().isEmpty())
{
QString baseName = QFileInfo(audioFile.filePath()).fileName();
int index;
if ((index = baseName.lastIndexOf(".")) >= 0)
{
baseName = baseName.left(index);
}
baseName = baseName.replace("_", " ").simplified();
if ((index = baseName.lastIndexOf(" - ")) >= 0)
{
baseName = baseName.mid(index + 3).trimmed();
}
audioFile.metaInfo().setTitle(baseName);
}
if ((audioFile.techInfo().audioType().compare("PCM", Qt::CaseInsensitive) == 0) && (audioFile.techInfo().audioProfile().compare("Float", Qt::CaseInsensitive) == 0))
{
if (audioFile.techInfo().audioBitdepth() == 32) audioFile.techInfo().setAudioBitdepth(AudioFileModel::BITDEPTH_IEEE_FLOAT32);
}
}
else
{
qWarning("Audio file format could *not* be recognized!");
}
return audioFile;
}
void AnalyzeTask::parseFileInfo(QXmlStreamReader &xmlStream, AudioFileModel &audioFile)
{
QSet<MI_trackType_t> tracksProcessed;
MI_trackType_t trackType;
while (findNextElement(QLatin1String("Track"), xmlStream))
{
const QString typeString = findAttribute(QLatin1String("Type"), xmlStream.attributes());
if ((trackType = m_trackTypes.value(typeString.toLower(), MI_trackType_t(-1))) != MI_trackType_t(-1))
{
if (!tracksProcessed.contains(trackType))
{
tracksProcessed << trackType;
parseTrackInfo(xmlStream, trackType, audioFile);
}
else
{
qWarning("Skipping non-primary '%s' track!", MUTILS_UTF8(typeString));
xmlStream.skipCurrentElement();
}
}
else
{
qWarning("Skipping unsupported '%s' track!", MUTILS_UTF8(typeString));
xmlStream.skipCurrentElement();
}
}
}
void AnalyzeTask::parseTrackInfo(QXmlStreamReader &xmlStream, const MI_trackType_t trackType, AudioFileModel &audioFile)
{
QString coverMimeType;
while (xmlStream.readNextStartElement())
{
const MI_propertyId_t idx = m_mediaInfoIdx.value(qMakePair(trackType, xmlStream.name().toString().simplified().toLower()), MI_propertyId_t(-1));
if (idx != MI_propertyId_t(-1))
{
const QString encoding = findAttribute(QLatin1String("dt"), xmlStream.attributes());
const QString value = xmlStream.readElementText(QXmlStreamReader::SkipChildElements).simplified();
if (!value.isEmpty())
{
parseProperty(encoding.isEmpty() ? value : decodeStr(value, encoding), idx, audioFile, coverMimeType);
}
}
else
{
xmlStream.skipCurrentElement();
}
}
}
void AnalyzeTask::parseProperty(const QString &value, const MI_propertyId_t propertyIdx, AudioFileModel &audioFile, QString &coverMimeType)
{
#if MUTILS_DEBUG
qDebug("Property #%d = \"%s\"", propertyIdx, MUTILS_UTF8(value.left(24)));
#endif
switch (propertyIdx)
{
case propertyId_container: audioFile.techInfo().setContainerType(value); return;
case propertyId_container_profile: audioFile.techInfo().setContainerProfile(value); return;
case propertyId_duration: SET_OPTIONAL(double, parseFloat(value, _tmp), audioFile.techInfo().setDuration(qRound(_tmp))); return;
case propertyId_title: audioFile.metaInfo().setTitle(value); return;
case propertyId_artist: audioFile.metaInfo().setArtist(value); return;
case propertyId_album: audioFile.metaInfo().setAlbum(value); return;
case propertyId_genre: audioFile.metaInfo().setGenre(value); return;
case propertyId_released_date: SET_OPTIONAL(quint32, parseYear(value, _tmp), audioFile.metaInfo().setYear(_tmp)); return;
case propertyId_track_position: SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.metaInfo().setPosition(_tmp)); return;
case propertyId_comment: audioFile.metaInfo().setComment(value); return;
case propertyId_format: audioFile.techInfo().setAudioType(value); return;
case propertyId_format_version: audioFile.techInfo().setAudioVersion(value); return;
case propertyId_format_profile: audioFile.techInfo().setAudioProfile(value); return;
case propertyId_channel_s_: SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioChannels(_tmp)); return;
case propertyId_samplingrate: SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioSamplerate(_tmp)); return;
case propertyId_bitdepth: SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioBitdepth(_tmp)); return;
case propertyId_bitrate: SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioBitrate(DIV_RND(_tmp, 1000U))); return;
case propertyId_bitrate_mode: SET_OPTIONAL(quint32, parseRCMode(value, _tmp), audioFile.techInfo().setAudioBitrateMode(_tmp)); return;
case propertyId_encoded_library: audioFile.techInfo().setAudioEncodeLib(cleanAsciiStr(value)); return;
case propertyId_cover_mime: coverMimeType = value; return;
case propertyId_cover_data: retrieveCover(audioFile, coverMimeType, value); return;
default: MUTILS_THROW_FMT("Invalid property ID: %d", propertyIdx);
}
}
bool AnalyzeTask::checkFile_CDDA(QFile &file)
{
file.reset();
QByteArray data = file.read(128);
int i = data.indexOf("RIFF");
int j = data.indexOf("CDDA");
int k = data.indexOf("fmt ");
return ((i >= 0) && (j >= 0) && (k >= 0) && (k > j) && (j > i));
}
void AnalyzeTask::retrieveCover(AudioFileModel &audioFile, const QString &coverType, const QString &coverData)
{
const QByteArray content = QByteArray::fromBase64(coverData.toLatin1());
const QString type = m_mimeTypes.value(coverType.toLower());
qDebug("Retrieving cover! (mime=\"%s\", type=\"%s\", len=%d)", MUTILS_L1STR(coverType), MUTILS_L1STR(type), content.size());
if(!QImage::fromData(content, type.isEmpty() ? NULL : MUTILS_L1STR(type.toUpper())).isNull())
{
QFile coverFile(QString("%1/%2.%3").arg(MUtils::temp_folder(), MUtils::next_rand_str(), type.isEmpty() ? QLatin1String("jpg") : type));
if(coverFile.open(QIODevice::WriteOnly))
{
coverFile.write(content);
coverFile.close();
audioFile.metaInfo().setCover(coverFile.fileName(), true);
}
}
else
{
qWarning("Image data seems to be invalid! [Header:%s]", content.left(32).toHex().constData());
}
}
bool AnalyzeTask::analyzeAvisynthFile(const QString &filePath, AudioFileModel &info)
{
QProcess process;
MUtils::init_process(process, QFileInfo(m_avs2wavBin).absolutePath());
process.start(m_avs2wavBin, QStringList() << QDir::toNativeSeparators(filePath) << "?");
if(!process.waitForStarted())
{
qWarning("AVS2WAV process failed to create!");
qWarning("Error message: \"%s\"\n", process.errorString().toLatin1().constData());
process.kill();
process.waitForFinished(-1);
return false;
}
bool bInfoHeaderFound = false;
while(process.state() != QProcess::NotRunning)
{
if(MUTILS_BOOLIFY(m_abortFlag))
{
process.kill();
qWarning("Process was aborted on user request!");
break;
}
if(!process.waitForReadyRead())
{
if(process.state() == QProcess::Running)
{
qWarning("AVS2WAV time out. Killing process and skipping file!");
process.kill();
process.waitForFinished(-1);
return false;
}
}
while(process.canReadLine())
{
const QString line = QString::fromUtf8(process.readLine().constData()).simplified();
if(!line.isEmpty())
{
if(bInfoHeaderFound)
{
const qint32 index = line.indexOf(':');
if (index > 0)
{
const QString key = line.left(index).trimmed();
const QString val = line.mid(index + 1).trimmed();
if (!(key.isEmpty() || val.isEmpty()))
{
switch (m_avisynthIdx.value(key.toLower(), MI_propertyId_t(-1)))
{
case propertyId_duration: SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setDuration(_tmp)); break;
case propertyId_samplingrate: SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setAudioSamplerate(_tmp)); break;
case propertyId_channel_s_: SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setAudioChannels(_tmp)); break;
case propertyId_bitdepth: SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setAudioBitdepth(_tmp)); break;
}
}
}
}
else
{
if(line.contains("[Audio Info]", Qt::CaseInsensitive))
{
info.techInfo().setAudioType("Avisynth");
info.techInfo().setContainerType("Avisynth");
bInfoHeaderFound = true;
}
}
}
}
}
process.waitForFinished();
if(process.state() != QProcess::NotRunning)
{
process.kill();
process.waitForFinished(-1);
}
//Check exit code
switch(process.exitCode())
{
case 0:
qDebug("Avisynth script was analyzed successfully.");
return true;
break;
case -5:
qWarning("It appears that Avisynth is not installed on the system!");
return false;
break;
default:
qWarning("Failed to open the Avisynth script, bad AVS file?");
return false;
break;
}
}
// ---------------------------------------------------------
// Utility Functions
// ---------------------------------------------------------
QString AnalyzeTask::decodeStr(const QString &str, const QString &encoding)
{
if (STRICMP(encoding, QLatin1String("binary.base64")))
{
const QString decoded = QString::fromUtf8(QByteArray::fromBase64(str.toLatin1()));
return decoded;
}
return QString();
}
bool AnalyzeTask::parseUnsigned(const QString &str, quint32 &value)
{
bool okay = false;
value = str.toUInt(&okay);
return okay;
}
bool AnalyzeTask::parseFloat(const QString &str, double &value)
{
bool okay = false;
value = QLocale::c().toDouble(str, &okay);
return okay;
}
bool AnalyzeTask::parseYear(const QString &str, quint32 &value)
{
if (str.startsWith(QLatin1String("UTC"), Qt::CaseInsensitive))
{
const QDate date = QDate::fromString(str.mid(3).trimmed().left(10), QLatin1String("yyyy-MM-dd"));
if (date.isValid())
{
value = date.year();
return true;
}
return false;
}
else
{
return parseUnsigned(str, value);
}
}
bool AnalyzeTask::parseRCMode(const QString &str, quint32 &value)
{
if (STRICMP(str, QLatin1String("CBR")))
{
value = AudioFileModel::BitrateModeConstant;
return true;
}
if (STRICMP(str, QLatin1String("VBR")))
{
value = AudioFileModel::BitrateModeVariable;
return true;
}
return false;
}
QString AnalyzeTask::cleanAsciiStr(const QString &str)
{
QByteArray ascii = str.toLatin1();
for (QByteArray::Iterator iter = ascii.begin(); iter != ascii.end(); ++iter)
{
if ((*iter < 0x20) || (*iter >= 0x7F)) *iter = 0x3F;
}
return QString::fromLatin1(ascii).remove(QLatin1Char('?')).simplified();
}
bool AnalyzeTask::findNextElement(const QString &name, QXmlStreamReader &xmlStream)
{
while (xmlStream.readNextStartElement())
{
if (STRICMP(xmlStream.name(), name))
{
return true;
}
xmlStream.skipCurrentElement();
}
return false;
}
QString AnalyzeTask::findAttribute(const QString &name, const QXmlStreamAttributes &xmlAttributes)
{
for (QXmlStreamAttributes::ConstIterator iter = xmlAttributes.constBegin(); iter != xmlAttributes.constEnd(); ++iter)
{
if (STRICMP(iter->name(), name))
{
const QString value = iter->value().toString().simplified();
if (!value.isEmpty())
{
return value; /*found*/
}
}
}
return QString();
}
bool AnalyzeTask::checkVersionStr(const QString &str, const quint32 expectedMajor, const quint32 expectedMinor)
{
QRegExp version("^(\\d+)\\.(\\d+)($|\\.)");
if (version.indexIn(str) >= 0)
{
quint32 actual[2];
if (MUtils::regexp_parse_uint32(version, actual, 2))
{
if ((actual[0] == expectedMajor) && (actual[1] >= expectedMinor))
{
return true;
}
}
}
return false;
}
////////////////////////////////////////////////////////////
// Public Functions
////////////////////////////////////////////////////////////
/*NONE*/
////////////////////////////////////////////////////////////
// EVENTS
////////////////////////////////////////////////////////////
/*NONE*/